function getQueryVar(name, win) {
	if(!win) win = window;
	var query = win.location.search.substring(1);
	var vars = query.split("&");
	for (var i=0;i<vars.length;i++) {
		var pair = vars[i].split("=");
		if (pair[0] == name) {
			return pair[1];
		}
	}
}